计算物理 ›› 1987, Vol. 4 ›› Issue (4): 469-479.
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冯正永, 肖臣国, 李印华, 施国顺
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Feng Zheng-yong, Xiao Chen-guo, Li Yin-hua, Shi Guo-shun
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摘要： 本文用蒙特卡罗方法研究了宽束γ射线通过介质的衰减情况,指出只要使用等效吸收系数(表观μ'值),仍可按指数规律处理,从而提出了γ测厚仪新的设计思想,以减小源强、增加计数率,提高测量精度。本工作用60keV的宽束γ射线在铝中的吸收实验,验证了蒙特卡罗理论计算结果。
Abstract: In this article, the attenuation of broad beam of γ-ray passing through a medium has been researched with Monte-Carlo method and it was pointed out that the beam obeys the exponential rule if an equivalent absorption coefficient is used. A new idea of design forγ-ray thicknessmeter was then advanced for weakening radiation intensity, increasing count, and improving measurement precision. An absorption experiment of broad beam of γ-ray with energy of 60 keV in aluminium has been done and the result agrees with Monte-Carlo calculation.
冯正永, 肖臣国, 李印华, 施国顺. γ测厚仪的物理设计[J]. 计算物理, 1987, 4(4): 469-479.
Feng Zheng-yong, Xiao Chen-guo, Li Yin-hua, Shi Guo-shun. PHYSICS DESIGN FOR THE γ-RAY THICKNESSIVSETER[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 1987, 4(4): 469-479.
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